X-ray microtomography (microCT) of the progression of sulfate attack of cement paste

S. R. Stock; N. K. Naik; A. P. Wilkinson; K. E. Kurtis

doi:10.1016/S0008-8846(02)00814-1

X-ray microtomography (microCT) of the progression of sulfate attack of cement paste

S. R. Stock^*, N. K. Naik, A. P. Wilkinson, K. E. Kurtis

^*Corresponding author for this work

Cell & Developmental Biology

Research output: Contribution to journal › Article › peer-review

98 Scopus citations

Abstract

High-resolution X-ray computed tomography (i.e., microCT or microtomography) was used to study the sulfate attack of cylinders of Type I cement paste cast with water-cement (w/c) ratios of 0.45, 0.50 and 0.60. Damage levels in samples exposed to a Na₂SO₄ solution with 10,000 ppm sulfate ion concentration were qualitatively rated from 0 (no damage) to 4 (extreme damage) based upon visual examination of the samples' exteriors and microtomography of the samples' interiors. The greater the w/c ratio, the more rapid the onset of sulfate damage. The corners of the cylinders appeared to be particularly susceptible to spalling, and damage may have continued into the cement paste by formation of subsurface cracks.

Original language	English (US)
Pages (from-to)	1673-1675
Number of pages	3
Journal	Cement and Concrete Research
Volume	32
Issue number	10
DOIs	https://doi.org/10.1016/S0008-8846(02)00814-1
State	Published - Oct 2002

Funding

The research was supported by NSF CMS grant 0084824, and data were collected at the Georgia Tech Microtomography Facility supported by NSF BES grant 9977551.

Keywords

Cement paste
MicroCT
Microtomography
Nondestructive evaluation
Sulfate attack
X-ray

ASJC Scopus subject areas

Building and Construction
General Materials Science

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10.1016/S0008-8846(02)00814-1

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title = "X-ray microtomography (microCT) of the progression of sulfate attack of cement paste",

abstract = "High-resolution X-ray computed tomography (i.e., microCT or microtomography) was used to study the sulfate attack of cylinders of Type I cement paste cast with water-cement (w/c) ratios of 0.45, 0.50 and 0.60. Damage levels in samples exposed to a Na2SO4 solution with 10,000 ppm sulfate ion concentration were qualitatively rated from 0 (no damage) to 4 (extreme damage) based upon visual examination of the samples' exteriors and microtomography of the samples' interiors. The greater the w/c ratio, the more rapid the onset of sulfate damage. The corners of the cylinders appeared to be particularly susceptible to spalling, and damage may have continued into the cement paste by formation of subsurface cracks.",

keywords = "Cement paste, MicroCT, Microtomography, Nondestructive evaluation, Sulfate attack, X-ray",

author = "Stock, {S. R.} and Naik, {N. K.} and Wilkinson, {A. P.} and Kurtis, {K. E.}",

note = "Funding Information: The research was supported by NSF CMS grant 0084824, and data were collected at the Georgia Tech Microtomography Facility supported by NSF BES grant 9977551. ",

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AU - Stock, S. R.

AU - Naik, N. K.

AU - Wilkinson, A. P.

AU - Kurtis, K. E.

N1 - Funding Information: The research was supported by NSF CMS grant 0084824, and data were collected at the Georgia Tech Microtomography Facility supported by NSF BES grant 9977551.

PY - 2002/10

Y1 - 2002/10

N2 - High-resolution X-ray computed tomography (i.e., microCT or microtomography) was used to study the sulfate attack of cylinders of Type I cement paste cast with water-cement (w/c) ratios of 0.45, 0.50 and 0.60. Damage levels in samples exposed to a Na2SO4 solution with 10,000 ppm sulfate ion concentration were qualitatively rated from 0 (no damage) to 4 (extreme damage) based upon visual examination of the samples' exteriors and microtomography of the samples' interiors. The greater the w/c ratio, the more rapid the onset of sulfate damage. The corners of the cylinders appeared to be particularly susceptible to spalling, and damage may have continued into the cement paste by formation of subsurface cracks.

AB - High-resolution X-ray computed tomography (i.e., microCT or microtomography) was used to study the sulfate attack of cylinders of Type I cement paste cast with water-cement (w/c) ratios of 0.45, 0.50 and 0.60. Damage levels in samples exposed to a Na2SO4 solution with 10,000 ppm sulfate ion concentration were qualitatively rated from 0 (no damage) to 4 (extreme damage) based upon visual examination of the samples' exteriors and microtomography of the samples' interiors. The greater the w/c ratio, the more rapid the onset of sulfate damage. The corners of the cylinders appeared to be particularly susceptible to spalling, and damage may have continued into the cement paste by formation of subsurface cracks.

KW - Cement paste

KW - MicroCT

KW - Microtomography

KW - Nondestructive evaluation

KW - Sulfate attack

KW - X-ray

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ER -

X-ray microtomography (microCT) of the progression of sulfate attack of cement paste

Abstract

Funding

Keywords

ASJC Scopus subject areas

Access to Document

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